AET. 20 FLOBIDA TREE SNAILS SIMPSON 23 



Shell not white. 



Shell flesh colored or pinkish. 



With a reddish peripheral line and a few brown spots on the 



upper spire elegans. 



Without a reddish peripheral line and a few brown spots on 

 the upper spire. 

 A few dark spiral lines may be present or absent-lineolatus. 

 Shell not flesh colored or pinkish. 



Shell pale yellow to orange, or orange brown (usually with a 



few dark spiral lines) ornatus. 



Shell not pale yellow to orange, or orange brown. 

 Shell dark, irregularly marked with green. 

 Dark spiral lines conspicuous on last whorl. 



testudineus. 

 Dark spiral lines not conspicuous but absent or only 

 faintly indicated. 



Shell with axial yellowish flames castanens. 



Shell without axial yellowish flames. 



Shell variegated, brown, smoky yellow, or 



bluish versicolor. 



Apex, columellar region, or both not pink, purplish, or violet. 

 Shell entirely white. 

 Shell porcellanous. 



Ground color ivory white with or without a dark peripheral line. 



crassus. 

 Ground color not ivory white with or without a dark peripheral 



line. 

 Ground color white, cream, or straw colored. 



Shell with a broad basal and supraperipheral pale yellow band. 



solidus. 

 Shell without a broad basal and supraperipheral pale yellow 

 band. 



Shell with two narrow yellow peripheral bands and one at 



the suture solidulus. 



Shell not especially porcellanous. 



Shell of pure white, ivory white, or whitish ground color. 

 Spiral lines greenish or bronzy. 

 Whorls well rounded. 



Whorls slightly shouldered at summit vacaensis. 



Wliorls not slightly shouldered at summit. 



Whorls short and subsolid, dull colored (often with a 



ledge within its aperture) lossmanicus. 



Whorls not short or dull colored (last whorl often 



bronzy or greenisli) mosierL 



Whorls but slightly rounded. 



Shell with the columella curved matecumbiensis. 



Shell with the columella not curved. 



Shell solid capensis. 



Shell not solid. 

 Shell thin. 



Shoulder generally angulatcd (not small). 



septentrionalis. 

 Shoulder not generally angulated (small). 



elliottensis. 



